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MCE, AMD: Rework NB MCE signatures 

Correct their formulation, replace per-family functions with a single,
unified lookup table.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Reviewed-by: Andreas Herrmann <andreas.herrmann3@amd.com>
This commit is contained in:
Borislav Petkov 2011-11-24 21:29:57 +01:00 committed by Borislav Petkov
parent b64a99c175
commit 68782673e6
2 changed files with 49 additions and 130 deletions
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178
drivers/edac/mce_amd.c
View File

@ -64,17 +64,6 @@ EXPORT_SYMBOL_GPL(to_msgs);
const char *ii_msgs[] = { "MEM", "RESV", "IO", "GEN" };
EXPORT_SYMBOL_GPL(ii_msgs);
static const char *f10h_nb_mce_desc[] = {
"HT link data error",
"Protocol error (link, L3, probe filter, etc.)",
"Parity error in NB-internal arrays",
"Link Retry due to IO link transmission error",
"L3 ECC data cache error",
"ECC error in L3 cache tag",
"L3 LRU parity bits error",
"ECC Error in the Probe Filter directory"
};
static const char * const f15h_ic_mce_desc[] = {
"UC during a demand linefill from L2",
"Parity error during data load from IC",
@ -112,6 +101,28 @@ static const char * const f15h_cu_mce_desc[] = {
"PRB address parity error"
};
static const char *nb_mce_desc[] = {
"DRAM ECC error detected on the NB",
"CRC error detected on HT link",
"Link-defined sync error packets detected on HT link",
"HT Master abort",
"HT Target abort",
"Invalid GART PTE entry during GART table walk",
"Unsupported atomic RMW received from an IO link",
"Watchdog timeout due to lack of progress",
"DRAM ECC error detected on the NB",
"SVM DMA Exclusion Vector error",
"HT data error detected on link",
"Protocol error (link, L3, probe filter)",
"NB internal arrays parity error",
"DRAM addr/ctl signals parity error",
"IO link transmission error",
"L3 data cache ECC error", /* xec = 0x1c */
"L3 cache tag error",
"L3 LRU parity bits error",
"ECC Error in the Probe Filter directory"
};
static const char * const fr_ex_mce_desc[] = {
"CPU Watchdog timer expire",
"Wakeup array dest tag",
@ -499,58 +510,31 @@ wrong_ls_mce:
pr_emerg(HW_ERR "Corrupted LS MCE info?\n");
}
static bool k8_nb_mce(u16 ec, u8 xec)
void amd_decode_nb_mce(struct mce *m)
{
bool ret = true;
switch (xec) {
case 0x1:
pr_cont("CRC error detected on HT link.\n");
break;
case 0x5:
pr_cont("Invalid GART PTE entry during GART table walk.\n");
break;
case 0x6:
pr_cont("Unsupported atomic RMW received from an IO link.\n");
break;
case 0x0:
case 0x8:
if (boot_cpu_data.x86 == 0x11)
return false;
pr_cont("DRAM ECC error detected on the NB.\n");
break;
case 0xd:
pr_cont("Parity error on the DRAM addr/ctl signals.\n");
break;
default:
ret = false;
break;
}
return ret;
}
static bool f10h_nb_mce(u16 ec, u8 xec)
{
bool ret = true;
struct cpuinfo_x86 *c = &boot_cpu_data;
int node_id = amd_get_nb_id(m->extcpu);
u16 ec = EC(m->status);
u8 xec = XEC(m->status, 0x1f);
u8 offset = 0;
if (k8_nb_mce(ec, xec))
return true;
pr_emerg(HW_ERR "Northbridge Error (node %d): ", node_id);
switch(xec) {
case 0xa ... 0xc:
offset = 10;
break;
switch (xec) {
case 0x0 ... 0xe:
case 0xe:
offset = 11;
/* special handling for DRAM ECCs */
if (xec == 0x0 || xec == 0x8) {
/* no ECCs on F11h */
if (c->x86 == 0x11)
goto wrong_nb_mce;
pr_cont("%s.\n", nb_mce_desc[xec]);
if (nb_bus_decoder)
nb_bus_decoder(node_id, m);
return;
}
break;
case 0xf:
@ -559,83 +543,25 @@ static bool f10h_nb_mce(u16 ec, u8 xec)
else if (BUS_ERROR(ec))
pr_cont("DMA Exclusion Vector Table Walk error.\n");
else
ret = false;
goto out;
break;
goto wrong_nb_mce;
return;
case 0x19:
if (boot_cpu_data.x86 == 0x15)
pr_cont("Compute Unit Data Error.\n");
else
ret = false;
goto out;
break;
goto wrong_nb_mce;
return;
case 0x1c ... 0x1f:
offset = 24;
offset = 13;
break;
default:
ret = false;
goto out;
break;
}
pr_cont("%s.\n", f10h_nb_mce_desc[xec - offset]);
out:
return ret;
}
static bool nb_noop_mce(u16 ec, u8 xec)
{
return false;
}
void amd_decode_nb_mce(struct mce *m)
{
struct cpuinfo_x86 *c = &boot_cpu_data;
int node_id = amd_get_nb_id(m->extcpu);
u16 ec = EC(m->status);
u8 xec = XEC(m->status, 0x1f);
pr_emerg(HW_ERR "Northbridge Error (node %d): ", node_id);
switch (xec) {
case 0x2:
pr_cont("Sync error (sync packets on HT link detected).\n");
return;
case 0x3:
pr_cont("HT Master abort.\n");
return;
case 0x4:
pr_cont("HT Target abort.\n");
return;
case 0x7:
pr_cont("NB Watchdog timeout.\n");
return;
case 0x9:
pr_cont("SVM DMA Exclusion Vector error.\n");
return;
default:
break;
}
if (!fam_ops->nb_mce(ec, xec))
goto wrong_nb_mce;
}
if (c->x86 == 0xf || c->x86 == 0x10 || c->x86 == 0x15)
if ((xec == 0x8 || xec == 0x0) && nb_bus_decoder)
nb_bus_decoder(node_id, m);
pr_cont("%s.\n", nb_mce_desc[xec - offset]);
return;
wrong_nb_mce:
@ -844,39 +770,33 @@ static int __init mce_amd_init(void)
case 0xf:
fam_ops->dc_mce = k8_dc_mce;
fam_ops->ic_mce = k8_ic_mce;
fam_ops->nb_mce = k8_nb_mce;
break;
case 0x10:
fam_ops->dc_mce = f10h_dc_mce;
fam_ops->ic_mce = k8_ic_mce;
fam_ops->nb_mce = f10h_nb_mce;
break;
case 0x11:
fam_ops->dc_mce = k8_dc_mce;
fam_ops->ic_mce = k8_ic_mce;
fam_ops->nb_mce = f10h_nb_mce;
break;
case 0x12:
fam_ops->dc_mce = f12h_dc_mce;
fam_ops->ic_mce = k8_ic_mce;
fam_ops->nb_mce = nb_noop_mce;
break;
case 0x14:
nb_err_cpumask = 0x3;
fam_ops->dc_mce = f14h_dc_mce;
fam_ops->ic_mce = f14h_ic_mce;
fam_ops->nb_mce = nb_noop_mce;
break;
case 0x15:
xec_mask = 0x1f;
fam_ops->dc_mce = f15h_dc_mce;
fam_ops->ic_mce = f15h_ic_mce;
fam_ops->nb_mce = f10h_nb_mce;
break;
default:

1
drivers/edac/mce_amd.h
View File

@ -82,7 +82,6 @@ extern const char *ii_msgs[];
struct amd_decoder_ops {
bool (*dc_mce)(u16, u8);
bool (*ic_mce)(u16, u8);
bool (*nb_mce)(u16, u8);
};
void amd_report_gart_errors(bool);